Process for the preparation of thermoplastic syntactic foam and

Details Process for the preparation of thermoplastic syntactic foam and Process for the preparation of thermoplastic syntactic foam and

1990-04-30

1992-06-09

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 55, 521134, 521135, 521138, 521139, 523218, 523219, C08J 9236

Patent

active

051207699

ABSTRACT:
Compositions are disclosed which are suitable for the preparation of thermoplastic syntactic foam intermediate and final products. These compositions comprise a slurry or putty containing thermoplastic particles, microballoons, and a non-solvent, optionally in the presence of suitable thickeners, binders, and surfactants. In a preferred embodiment, the composition contains particles of an engineering thermoplastic having a mean particle size less then about 100 .mu.m, microballoons, water as the non-solvent, and a thickener/binder which is a lightly crosslinked polyacrylic acid.

REFERENCES:
patent: 3959197 (1976-05-01), Salyer et al.
patent: 4255524 (1987-03-01), Dawans et al.
patent: 4330634 (1982-05-01), Rodaway
patent: 4699810 (1987-10-01), Blakeman et al.
patent: 4902722 (1990-02-01), Melber

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